title: Two-dimensional grating-based X-ray phase-contrast imaging using Fourier transform phase retrieval.
abstract: We demonstrate a single shot two-dimensional grating-based X-ray phase-contrast imaging using a synchrotron radiation source. A checkerboard designed phase grating for π phase modulation at 17 keV and 35 keV, and a lattice-shaped amplitude grating with a high aspect ratio to shield X-rays up to 35 keV were fabricated. A Fourier analysis of Moiré fringe generated by the gratings was introduced to obtain the two-dimensional differential phase-contrast image with a single exposure. The results show that soft tissues and cartilages of a chicken wing sample are clearly seen with differential phase variation in two-dimensional directions. Using this method not only the whole of an object but also only an inner part of the object can be imaged.
authors.affiliation: Frontier Research Center, Corporate R&D Headquarters, Canon Inc., 3-30-2 Shimomaruko, Ohta-ku, Tokyo 146-8501, Japan. itoh.hidenosuke@canon.co.jp
authors.forename: Hidenosuke
authors.initials: H
authors.lastname: Itoh
authors.forename: Kentaro
authors.initials: K
authors.lastname: Nagai
authors.forename: Genta
authors.initials: G
authors.lastname: Sato
authors.forename: Kimiaki
authors.initials: K
authors.lastname: Yamaguchi
authors.forename: Takashi
authors.initials: T
authors.lastname: Nakamura
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kondoh
authors.forename: Chidane
authors.initials: C
authors.lastname: Ouchi
authors.forename: Takayuki
authors.initials: T
authors.lastname: Teshima
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Setomoto
authors.forename: Toru
authors.initials: T
authors.lastname: Den